Thermo-Mechanical Analysis of Oxidation Protected Carbon-Carbon Composites
Abstract
The AFOSR oxidation-protected C-C composite program is focused on developing and verifying mathematical models predicting the thermomechanical properties of exposed carbon-carbon composites. These models will be utilized to make judgements on the merits of both current and future materials concepts for oxidation resistance. These efforts are focused on the understanding of the formation and growth of damage within these materials, and on the influence of oxidation protection constituents on the overall carbon-carbon material system. Models will be used to investigate the effects of inhibitors, microcrack patterns, fiber coatings, surface coatings and matrix replacements on effective thermomechanical properties of carbon-carbon materials. The result of these models will allow the quantification of effective crack management strategies to improve the overall performance of these materials. Parallel efforts in this program include an experimental portion for the quantification of microcracks within the material and a variety of thermomechanical tests on specimens with and without coatings and inhibitors. Different material systems will allow a full range of constituent and processing variables to be studied. Results of these experiments will be compared to the predictions of the mathematical models in order to suggest improved design methods for carbon. carbon material systems. ... Oxidation protection, Coated carbon-carbon, Analytical modeling, Fiber composites, High temperature materials, Silicon carbide coatings, Crack management, Micromechanics of oxidation protection.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1993
- Accession Number
- ADA268191
Entities
People
- Mark Jones
- Thomas Cassin
- Zvi Hashin